American Tartaric Products (ATP) is a supplier of acidulants, flavor enhancers, preservatives and vitamins to the wine, beer, food and pharmaceutical markets across North America. They also offer clairifires, stabilizers and filtration aids to the wine, juice, spirits and beer industries. American Tartaric Products is the largest supplier of Tartaric Acid and Tartrate derivatives in the U.S.A. and the only U.S. producer of Cream of Tartar.